彩色图像DWT-DFT-SVD域鲁棒数字图像水印算法

2012 International Conference on Communication, Information & Computing Technology (ICCICT) Pub Date : 2012-12-31 DOI:10.1109/ICCICT.2012.6398160

R. Ansari, M. Devanalamath, K. Manikantan, S. Ramachandran

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引用次数: 32

摘要

本文提出了一种将离散小波变换(DWT)、离散傅立叶变换(DFT)和奇异值分解(SVD)独特组合的数字水印算法，用于对数字彩色图像进行水印，实现数据的安全传输。将DWT+DFT变换后的水印的奇异值嵌入到DWT+DFT变换后的彩色图像的奇异值上。实验结果表明，该算法具有良好的水印性能。水印图像的峰值信噪比(PSNR)在65 ~ 85 dB范围内，最大相关系数为0.9998。

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Robust Digital image Watermarking Algorithm in DWT-DFT-SVD domain for color images

This paper proposes a Digital Watermarking Algorithm using a unique combination of Discrete Wavelet Transform (DWT), Discrete Fourier Transform (DFT) and Singular Value Decomposition (SVD) for secured transmission of data through watermarking digital color images. The singular values obtained from SVD of DWT+DFT transformed watermark is embedded onto the singular values obtained from SVD of DWT+DFT transformed color image. Experimental results show the promising performance of the proposed algorithm for watermarking. Peak Signal to Noise Ratio (PSNR) values for the watermarked image in the range of 65 to 85 dB and maximum correlation of 0.9998 are achieved.

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2012 International Conference on Communication, Information & Computing Technology (ICCICT)

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